Mathematics, 24.02.2020 00:47 eliza35
The half-life of a radioactive substance is 50 years. If you start with some amount of this substance, what fraction will remain in 200 years? What fraction will remain in 300 years?
Answers: 2
Mathematics, 21.06.2019 17:20
Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x
Answers: 1
Mathematics, 21.06.2019 19:40
Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?
Answers: 1
Mathematics, 21.06.2019 21:20
Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?
Answers: 1
The half-life of a radioactive substance is 50 years. If you start with some amount of this substanc...
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